登入選單
返回Google圖書搜尋
Gumbotil as a Potential Source of Rotary Drilling Mud, Bonding Clay and Bleaching Clay
其他書名
A Progress Report on the Study of Illinois Surficial Clays
出版State Geolgical Survey, 1938
URLhttp://books.google.com.hk/books?id=alFgPQAACAAJ&hl=&source=gbs_api